tests: increase (compile) timeout multiplier for T13701 and MultiLayerModules

Authored by alpmestan on Sep 14 2018, 7:01 AM.

Description

tests: increase (compile) timeout multiplier for T13701 and MultiLayerModules

Summary:
Those tests are currently making our i386 validation fail on CircleCI:

https://circleci.com/gh/ghc/ghc/8827

Test Plan: Using my Phab<->CircleCI bridge to run i386 validation for this diff.

Reviewers: bgamari, monoidal

Reviewed By: monoidal

Subscribers: rwbarton, carter

GHC Trac Issues: Trac #15484, Trac #15383

Differential Revision: https://phabricator.haskell.org/D5103